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Intel
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IXP42X product line and IXC1100 control plane processors—Intel XScale
®
Processor
Intel
®
IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor
DM September 2006
66 Order Number: 252480-006US
A simple software routine is used to globally clean the data cache. It takes advantage
of the line-allocate data cache operation, which allocates a line into the data cache.
This allocation evicts any cache dirty data back to external memory. Example 9 shows
how data cache can be cleaned.